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公开(公告)号：US20050202842A1
公开(公告)日：2005-09-15
申请号：US11057459
申请日：2005-02-14
申请人： Michael Brobston , Seong Kim , Lup Loh
发明人： Michael Brobston , Seong Kim , Lup Loh
CPC分类号： H04B1/006
摘要： A multi-mode, multi-band mobile station for use in wireless networks operating under different air interface standards. The present invention, the mobile station comprises a plurality of low-noise amplifiers. Each of the plurality of low-noise amplifiers is optimized for use in a selected frequency band. The mobile station also comprises a near-zero intermediate frequency (NZIF) broadband image rejection mixer for receiving an amplified RF signal from a selected one of the plurality of low-noise amplifiers and down-converting the amplified RF signal to produce a first analog intermediate frequency (IF) signal.
摘要翻译： 一种用于在不同空中接口标准下运行的无线网络中的多模，多频移动台。 本发明中，移动台包括多个低噪声放大器。 多个低噪声放大器中的每一个被优化用于所选择的频带。 移动台还包括近零中频（NZIF）宽带镜像抑制混频器，用于从所述多个低噪声放大器中选定的一个放大的RF信号接收放大的RF信号，并对放大的RF信号进行下变频以产生第一模拟中间体 频率（IF）信号。
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公开(公告)号：US20060078067A1
公开(公告)日：2006-04-13
申请号：US11168227
申请日：2005-06-28
申请人： Michael Brobston
发明人： Michael Brobston
CPC分类号： H03F1/0294 , H03F2200/331
摘要： A direct power amplifier modulator that accepts bipolar I and Q data, either baseband or multi-carrier digital IF, and generates the resultant magnitude and sign components. Also described is a direct power amplifier modulator that generates quadrature terms of the carrier frequency offset by 90°, wherein each term is shifted by 180° under control of the respective sign components of the quadrature I and Q samples. The present invention also provides a transistor structure configured to accept differential quadrature frequency components that are combined in a post PA outphasing combiner.
摘要翻译： 一个直接功率放大器调制器，可接收双极I和Q数据，无论是基带还是多载波数字IF，并产生合成幅度和符号分量。 还描述了一种直接功率放大器调制器，其产生载波频率偏移90°的正交项，其中每个项在正交I和Q采样的各个符号分量的控制下移位180°。 本发明还提供了一种晶体管结构，其被配置为接收组合在后置PA外相组合器中的差分正交频率分量。
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13.发明申请Versatile system for transceiver noise reduction in a time-division duplexing wireless network 有权用于时分双工无线网络中收发器降噪的多功能系统公开(公告)号：US20060221874A1
公开(公告)日：2006-10-05
申请号：US11284466
申请日：2005-11-22
IPC分类号： H04J3/00
CPC分类号： H04B1/0475 , H03H7/25 , H04B1/525
摘要： A system for suppressing transmission channel noise in a signal transmission/reception device—particularly a time division duplex (TDD) wireless communications device—is provided. The system provides one or more shunt elements, instantiated at some point along the device's signal transmission channel. One or more attenuation elements are also instantiated at some point along the signal transmission channel, as are one or more disabling elements. A trigger signal indicates when the device is shifting from signal transmission operation (or mode) to signal reception operation. Responsive to assertion of the trigger signal, the shunt, attenuation and disabling elements are activated.
摘要翻译： 提供一种用于抑制信号发送/接收装置（特别是时分双工（TDD）无线通信装置）中的传输信道噪声的系统。 该系统提供一个或多个分流元件，在设备的信号传输通道的某个点处实例化。 一个或多个衰减元件也在信号传输通道的某个点被实例化，以及一个或多个禁用元件。 触发信号指示装置何时从信号传输操作（或模式）转换到信号接收操作。 响应于触发信号的断言，分流，衰减和禁用元件被激活。
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14.发明申请公开(公告)号：US20060188027A1
公开(公告)日：2006-08-24
申请号：US11327838
申请日：2006-01-06
CPC分类号： H04B14/062 , H03F3/2175 , H03F2200/331
摘要： A Class S RF power amplifier for use in a radio frequency (RF) transmitter. The Class S power amplifier comprises a delta-sigma modulator that receives an analog modulated RF carrier and generates a pulse-width modulated binary signal. The Class S power amplifier also comprises a switch mode power amplifier that receives the pulse-width modulated binary signal generated by the delta-sigma modulator and generates an output carrier signal that switches between a fully on state and a fully off state. The sampling rate of the delta-sigma modulator is less than four times the frequency of the output carrier signal generated by the switch mode power amplifier.
摘要翻译： 用于射频（RF）发射机的S类RF功率放大器。 S类功率放大器包括Δ-Σ调制器，其接收模拟调制的RF载波并产生脉冲宽度调制的二进制信号。 S类功率放大器还包括开关模式功率放大器，其接收由Δ-Σ调制器产生的脉宽调制二进制信号，并产生在完全导通状态和完全关断状态之间切换的输出载波信号。 Δ-Σ调制器的采样率小于由开关模式功率放大器产生的输出载波信号的频率的四倍。
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公开(公告)号：US20060052124A1
公开(公告)日：2006-03-09
申请号：US11078808
申请日：2005-03-11
申请人： Warren Pottenger , Michael Brobston , John Interrante , Lup Loh , William Hurley
发明人： Warren Pottenger , Michael Brobston , John Interrante , Lup Loh , William Hurley
CPC分类号： H04W88/08 , H04B1/0003 , H04B1/40
摘要： A reconfigurable RF transceiver for use in either a base station or a mobile station Of a wireless network. The reconfigurable RF transceiver comprises a first receive path that down-converts an incoming RF signal to analog and digital baseband signals. The first receive path in a first mode down-converts the incoming RF signal in a receive frequency band for the base station and in a second mode down-converts the incoming RF signal in a receive frequency band for the mobile station. The reconfigurable RF transceiver further comprises a transmit path for up-converting an outgoing baseband signal to an outgoing RF signal. The transmit path in the first mode up-converts the outgoing baseband signal in a transmit frequency band for the base station and in the second mode up-converts the outgoing baseband signal in a transmit frequency band for the mobile station.
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公开(公告)号：US20220085476A1
公开(公告)日：2022-03-17
申请号：US17425633
申请日：2019-11-08
摘要： Multi-pole filters are provided herein. A multi-pole filter includes a substrate having a first resonator layer on a first side of the substrate and a second resonator layer that is electrically coupled to the first resonator layer and is on a second side of the substrate that is opposite the first side of the substrate.
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公开(公告)号：US08798552B2
公开(公告)日：2014-08-05
申请号：US11466304
申请日：2006-08-22
申请人： Michael Brobston , Seong Eun Kim , Lup Meng Loh
发明人： Michael Brobston , Seong Eun Kim , Lup Meng Loh
IPC分类号： H04B1/38
CPC分类号： H04B1/38
摘要： A reconfigurable wireless transceiver and method of use are disclosed. As one example, a reconfigurable wireless transceiver is disclosed, which includes a transmitter unit, a plurality of receiver units, and a processing unit coupled to the plurality of receiver units. A first receiver unit of the plurality of receiver units receives a first signal at a first frequency, and determines a strength level of the first signal. A second receiver unit of the plurality of receiver units searches for a second signal at a second frequency, detects the second signal at the second frequency, and determines a strength level of the detected second signal. The processing unit determines if the strength level of the detected second signal is greater than a predetermined value, and enables the second receiver unit to receive a third signal at substantially the second frequency, if the strength level of the detected second signal is greater than the predetermined value. The predetermined value may be substantially equal to the signal strength of the received first signal, and the third signal may be associated with over-the-air programming or tasking. As a second example, a method for reconfiguring a wireless transceiver is disclosed, which includes receiving a first signal in a first frequency band, determining a signal strength of the received signal, searching for a second signal in a second frequency band, detecting the second signal, determining a signal strength of the detected second signal, comparing the signal strength of the received first signal with a predetermined signal strength value, and enabling reception of the detected second signal and disabling reception of the first signal, if the signal strength of the detected second signal is greater than the predetermined signal strength value.
摘要翻译： 公开了一种可重新配置的无线收发器和使用方法。 作为一个示例，公开了可重新配置的无线收发器，其包括发送器单元，多个接收器单元以及耦合到多个接收器单元的处理单元。 多个接收机单元中的第一接收器单元以第一频率接收第一信号，并确定第一信号的强度电平。 多个接收机单元的第二接收器单元以第二频率搜索第二信号，以第二频率检测第二信号，并确定检测到的第二信号的强度电平。 处理单元确定所检测到的第二信号的强度电平是否大于预定值，并且如果所检测到的第二信号的强度电平大于所述第二信号的强度电平，则第二接收机单元能够基本上接收第二频率的第三信号 预定值。 预定值可以基本上等于所接收的第一信号的信号强度，并且第三信号可以与空中编程或任务相关联。 作为第二示例，公开了一种用于重新配置无线收发器的方法，其包括在第一频带中接收第一信号，确定接收信号的信号强度，在第二频带中搜索第二信号，检测第二频带 信号，确定检测到的第二信号的信号强度，将接收到的第一信号的信号强度与预定的信号强度值进行比较，以及如果接收到所检测到的第二信号并且禁止接收第一信号，则信号强度 检测出的第二信号大于预定的信号强度值。
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公开(公告)号：US20080051134A1
公开(公告)日：2008-02-28
申请号：US11466304
申请日：2006-08-22
申请人： Michael Brobston , Seong Eun Kim , Lup Meng Loh
发明人： Michael Brobston , Seong Eun Kim , Lup Meng Loh
CPC分类号： H04B1/38
摘要： A reconfigurable wireless transceiver and method of use are disclosed. As one example, a reconfigurable wireless transceiver is disclosed, which includes a transmitter unit, a plurality of receiver units, and a processing unit coupled to the plurality of receiver units. A first receiver unit of the plurality of receiver units receives a first signal at a first frequency, and determines a strength level of the first signal. A second receiver unit of the plurality of receiver units searches for a second signal at a second frequency, detects the second signal at the second frequency, and determines a strength level of the detected second signal. The processing unit determines if the strength level of the detected second signal is greater than a predetermined value, and enables the second receiver unit to receive a third signal at substantially the second frequency, if the strength level of the detected second signal is greater than the predetermined value. The predetermined value may be substantially equal to the signal strength of the received first signal, and the third signal may be associated with over-the-air programming or tasking. As a second example, a method for reconfiguring a wireless transceiver is disclosed, which includes receiving a first signal in a first frequency band, determining a signal strength of the received signal, searching for a second signal in a second frequency band, detecting the second signal, determining a signal strength of the detected second signal, comparing the signal strength of the received first signal with a predetermined signal strength value, and enabling reception of the detected second signal and disabling reception of the first signal, if the signal strength of the detected second signal is greater than the predetermined signal strength value.
摘要翻译： 公开了一种可重新配置的无线收发器和使用方法。 作为一个示例，公开了可重新配置的无线收发器，其包括发送器单元，多个接收器单元以及耦合到多个接收器单元的处理单元。 多个接收机单元中的第一接收器单元以第一频率接收第一信号，并确定第一信号的强度电平。 多个接收机单元的第二接收器单元以第二频率搜索第二信号，以第二频率检测第二信号，并确定检测到的第二信号的强度电平。 处理单元确定所检测到的第二信号的强度电平是否大于预定值，并且如果所检测到的第二信号的强度电平大于所述第二信号的强度电平，则第二接收机单元能够基本上接收第二频率的第三信号 预定值。 预定值可以基本上等于所接收的第一信号的信号强度，并且第三信号可以与空中编程或任务相关联。 作为第二示例，公开了一种用于重新配置无线收发器的方法，其包括在第一频带中接收第一信号，确定接收信号的信号强度，在第二频带中搜索第二信号，检测第二频带 信号，确定检测到的第二信号的信号强度，将接收到的第一信号的信号强度与预定的信号强度值进行比较，以及如果接收到所检测到的第二信号并且禁止接收第一信号，则信号强度 检测出的第二信号大于预定的信号强度值。
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公开(公告)号：US20070243832A1
公开(公告)日：2007-10-18
申请号：US10585755
申请日：2005-03-15
申请人： Hyung-Weon Park , Woo-Yong Lee , Young-Il Son , Seong-Eun Kim , Michael Brobston , Lup Loh
发明人： Hyung-Weon Park , Woo-Yong Lee , Young-Il Son , Seong-Eun Kim , Michael Brobston , Lup Loh
IPC分类号： H04B1/38
摘要： A multimode/multiband mobile station and a method for operating the same are provided. A transmission module transmits multimode/multiband signals through transmitters. A reception module receives radio signals for different services of the same frequency band among multimode/multiband signals through receivers for the same frequency band, and receives radio signals of different frequency bands among the multimode/multiband signals through receivers for the different frequency bands. As compared with the conventional mobile station, the multimode/multiband mobile station can reduce the number of receivers by making use of one receiver to receive radio signals for different services of the same frequency band. The multimode/multiband mobile station can use a duplexer of the conventional frequency division duplex (FDD) technique (e.g., wideband code division multiple access (WCDMA)) in a time division duplex (TDD) technique (e.g., Global System for Mobile Communication (GSM) 850 or Personal Communication Service (PCS) 1900).
摘要翻译： 提供了一种多模/多频移动台及其操作方法。 传输模块通过发射机传输多模/多频带信号。 接收模块通过相同频带的接收机在多模/多频信号之间接收不同业务频带的无线信号，并通过不同频带的接收机在多模/多频信号之间接收不同频带的无线信号。 与常规移动台相比，多模/多频移动台可以通过使用一个接收机来接收用于相同频带的不同业务的无线电信号来减少接收机的数量。 多模/多频移动台可以在时分双工（TDD）技术中使用常规频分双工（FDD）技术的双工器（例如宽带码分多址（WCDMA））（例如，全球移动通信系统 GSM）850或个人通信业务（PCS）1900）。
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20.发明申请Versatile system for multimode, wireless communication receiver with ZIFand Near-ZIF operations 失效多功能系统，用于多模，无线通信接收器，采用ZIFand近ZIF操作公开(公告)号：US20060205376A1
公开(公告)日：2006-09-14
申请号：US11326124
申请日：2006-01-05
申请人： Michael Brobston , Steven Loh , Seong Kim , Weon Yoon
发明人： Michael Brobston , Steven Loh , Seong Kim , Weon Yoon
CPC分类号： H04B1/30
摘要： An architecture for a receiver component in a wireless communications system is disclosed—one that supports both zero intermediate frequency (ZIF) and near-zero intermediate frequency (NZIF) operation. The architecture provides a down-conversion segment, and a local oscillator segment operatively associated with the down-conversion segment. An analog-to-digital conversion (ADC) segment is adapted to receive signals from the down-conversion segment and introduce the signals into a digital intermediate frequency (DIF) construct. The DIF construct performs a DC offset compensation or DC residue filtering on NZIF-based signals, and droop or mismatch compensation. Image removal is performed on NZIF-based signals, and DC offset compensation is performed on ZIF-based signals. Compensated signals are amplified to some nominal or desired level, and interpolation filtering of the amplified signals is performed prior to transmission thereof.
摘要翻译： 公开了一种用于无线通信系统中的接收机组件的架构，其支持零中频（ZIF）和近零中频（NZIF）操作。 该架构提供了一个下转换段，以及与下转换段可操作地相关联的本地振荡器段。 模数转换（ADC）段适于从下转换段接收信号并将信号引入数字中频（DIF）构造。 DIF结构对基于NZIF的信号执行直流偏移补偿或直流残差滤波，以及下降或失配补偿。 在基于NZIF的信号上执行图像去除，并且对基于ZIF的信号执行直流偏移补偿。 补偿信号被放大到某个标称或期望电平，并且在发送之前执行放大信号的内插滤波。
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